Build failed. https://zuul.opendev.org/t/openstack/buildset/bb3482dcfc1e4932b1423be5dee80d11 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/7f63488a03204c3fb29c22b4e54e1e8f : SUCCESS in 4m 21s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/abb9fa55f5374ec580d466e21396de82 : SUCCESS in 2m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5c76be5e11264b409351fce552b52aa4 : SUCCESS in 2m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/69ada637b61d44d2bca87bbc4d053dc3 : FAILURE in 2m 43s